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2003-02-20 Till Straumann <strauman@slac.stanford.edu>

Browse Source 
PR 349/bsps
	* startup/Makefile.am, startup/linkcmds startup/Makefile.am,
	startup/bspstart.c, startup/pgtbl_activate.c, startup/pgtbl_setup.c:
	Let the powerpc/shared (+derived) BSPs use pagetable support
	from libcpu.
This commit is contained in:
Joel Sherrill
2003-02-20 21:57:44 +00:00
parent ff4e9fe7a1
commit 83ae314d4e
3 changed files with 23 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
c/src/lib/libbsp/powerpc/motorola_powerpc/ChangeLog
View File

@@ -6,6 +6,14 @@
Let the powerpc/shared (+derived) BSPs use pagetable support Let the powerpc/shared (+derived) BSPs use pagetable support
from libcpu. from libcpu.
2003-02-20 Till Straumann <strauman@slac.stanford.edu>
PR 349/bsps
* startup/Makefile.am, startup/linkcmds startup/Makefile.am,
startup/bspstart.c, startup/pgtbl_activate.c, startup/pgtbl_setup.c:
Let the powerpc/shared (+derived) BSPs use pagetable support
from libcpu.
2003-02-20 Till Straumann <strauman@slac.stanford.edu> 2003-02-20 Till Straumann <strauman@slac.stanford.edu>
PR 349/bsps PR 349/bsps

2
c/src/lib/libbsp/powerpc/motorola_powerpc/startup/Makefile.am
View File

@@ -6,7 +6,7 @@
VPATH = @srcdir@:@srcdir@/../console:@srcdir@/../../../shared:@srcdir@/../../shared/startup VPATH = @srcdir@:@srcdir@/../console:@srcdir@/../../../shared:@srcdir@/../../shared/startup
C_FILES = bootcard.c main.c bspstart.c bsppost.c bsplibc.c sbrk.c bspclean.c \ C_FILES = bootcard.c main.c bspstart.c bsppost.c bsplibc.c sbrk.c bspclean.c \
gnatinstallhandler.c gnatinstallhandler.c pgtbl_setup.c pgtbl_activate.c
C_O_FILES = $(C_FILES:%.c=$(ARCH)/%.$(OBJEXT)) C_O_FILES = $(C_FILES:%.c=$(ARCH)/%.$(OBJEXT))
OBJS = $(C_O_FILES) OBJS = $(C_O_FILES)

19
c/src/lib/libbsp/powerpc/motorola_powerpc/startup/linkcmds
View File

@@ -7,7 +7,7 @@ ENTRY(_start)
PROVIDE (__stack = 0); PROVIDE (__stack = 0);
MEMORY { MEMORY {
VECTORS : ORIGIN = 0x0 , LENGTH = 0x3000 VECTORS : ORIGIN = 0x0 , LENGTH = 0x3000
CODE : ORIGIN = 0x3000 , LENGTH = 0x200000 CODE : ORIGIN = 0x3000 , LENGTH = 0x400000
} }
SECTIONS SECTIONS
{ {
@@ -76,9 +76,6 @@ SECTIONS
.fini : { _fini = .; KEEP(*(.fini)) } > CODE .fini : { _fini = .; KEEP(*(.fini)) } > CODE
_etext = .;
PROVIDE (etext = .);
.rodata : { *(.rodata*) *(.gnu.linkonce.r*) } > CODE .rodata : { *(.rodata*) *(.gnu.linkonce.r*) } > CODE
.rodata1 : { *(.rodata1) } > CODE .rodata1 : { *(.rodata1) } > CODE
@@ -104,6 +101,13 @@ SECTIONS
.sbss2 : { *(.sbss2) *(.gnu.linkonce.sb2.*) } >CODE .sbss2 : { *(.sbss2) *(.gnu.linkonce.sb2.*) } >CODE
.eh_frame : { *.(eh_frame) } >CODE .eh_frame : { *.(eh_frame) } >CODE
/* NOTE: if the BSP uses page tables, the correctness of
* '_etext' (and __DATA_START__) is CRUCIAL - otherwise,
* an invalid mapping may result!!!
*/
_etext = .;
PROVIDE (etext = .);
/* Adjust the address for the data segment. We want to adjust up to /* Adjust the address for the data segment. We want to adjust up to
the same address within the page on the next page up. It would the same address within the page on the next page up. It would
be more correct to do this: be more correct to do this:
@@ -119,8 +123,13 @@ SECTIONS
that no actual memory is lost; the page which is skipped can not that no actual memory is lost; the page which is skipped can not
be referenced). */ be referenced). */
. = ALIGN(0x1000); . = ALIGN(0x1000);
.data : .data ALIGN(0x1000) :
{ {
/* NOTE: if the BSP uses page tables, the correctness of
* '__DATA_START__' (and _etext) is CRUCIAL - otherwise,
* an invalid mapping may result!!!
*/
PROVIDE(__DATA_START__ = ABSOLUTE(.) );
*(.data) *(.data)
*(.gnu.linkonce.d*) *(.gnu.linkonce.d*)
SORT(CONSTRUCTORS) SORT(CONSTRUCTORS)